USB Rechargeable 9V Batteries Backup Replacement Square Battery Power Pack 650mAh Doorbell Batteries Microphone Batteries 8 packs

9V Battery: 650mAh long-lasting battery, without memory effect, can provide stable voltage until the entire battery is depleted. Up to 1800 charges: Compared to disposable alkaline batteries, these USB rechargeable batteries have a longer battery life, making them more economical and cost-effective. 3-hour fast charging: Advanced iQuick charging technology, using DC 5V/1A USB input. The battery can be fully charged within 3 hours, saving time and improving efficiency. Unique USB charging design: With the included 2-in-1 micro USB cable, you can easily charge directly from anywhere. No additional battery charger required. The built-in LED light allows you to check the charging status. High performance: With a battery capacity of 1200mAh, it can provide stable power and longer normal operation time for commonly used devices such as smoke/fire alarms, wireless microphones, toys, GPS, home security equipment, and medical equipment.You may also like CITYORK Rechargeable 9V Batteries Backup Replacement Square Battery Power Pack Constant Pressure 1200mAh Doorbell Batteries Microphone Batteries 8 packs.